I have been feeling kind of stuck lately on exactly what I was doing with the area on the east or left end of the Wesso section. In the recent post Land contours for the Wesso section I had shown how I created an area for a river bed. I had thought of using some bridges to make this the first crossing of the Humboldt River but because this is on a curve I realized that would not work so well so I came up with another idea.
Besides using various types of trestles and bridges to cross the larger rivers, the railroads use several types of culverts to cross smaller creeks or other types of low laying areas that provide seasonal drainage. With the tracks of both the SP and WP built up as they are there are in this location there are many places that use these culverts.